Ability to abort asynchronous call

Question

I\'m using babeljs with es7 style async/await methods. I have a main script that will call a async method on an array of objects that all return promises. I use Promise.al

Answer 1

If you can migrate to Typescript (in which types are optional and es6 and some es7 features are supported out of the box) instead of Babel and use Bluebird promises, the kind of cancellation semantics you are looking for can be achieved.

I've created a simple module which replaces the default Typescript __awaiter helper with one that supports Bluebird cancellations: https://www.npmjs.com/package/cancelable-awaiter

With it you can use aync/await syntax in conjunction with promise.cancel() and promise.finally() which Bluebird gives you.